Human Machine Interface (Hmi) Module - Toshiba GRL100-701B Instruction Manual

3.1.5

Human Machine Interface (HMI) Module

The operator can access the GRL100 via the human machine interface (HMI) module. As shown
in Figure 3.1.5.1, the HMI module has a liquid crystal display (LCD), light emitting diodes
(LED), view and reset keys, operation keys, monitoring jacks and an RS232C connector on the
front panel.
The LCD consists of 40 columns by 4 rows with a backlight and displays record, status and
setting data.
There are a total of 8 LED indicators and their signal labels and LED colors are defined as
follows:
Label Color
IN SERVICE Green
TRIP Red
ALARM Red
TESTING Red
(LED1) Red
(LED2) Red
(LED3) Red
(LED4) Red
LED1 to LED4 are user-configurable. Each is driven via a logic gate which can be programmed
for OR gate or AND gate operation. Further, each LED has a programmable reset characteristic,
settable for instantaneous drop-off, or for latching operation. For the setting, see Section
4.2.6.10. For the operation, see Section 4.2.1.
The TRIP LED is controlled with the scheme switch [AOLED] whether it is lit or not by an
output of alarm element such as THM ALARM, etc.
The VIEW key starts the LCD indication and switches between windows. The RESET key
clears the LCD indication and turns off the LCD backlight.
The operation keys are used to display the record, status and setting data on the LCD, input the
settings or change the settings.
The monitoring jacks and two pairs of LEDs, A and B, on top of the jacks can be used while the
test mode is selected in the LCD window. Signals can be displayed on LED A or LED B by
selecting the signal to be observed from the "Signal List" or "Variable Timer List" and setting it
in the window and the signals can be output to an oscilloscope via the monitoring jacks. (For the
"Signal List" or "Variable Timer List", see Appendix B or C.)
The RS232C connector is a 9-way D-type connector for serial RS232C connection. This
connector is used for connection with a local personal computer.
Remarks
Lit when the relay is in service.
Lit when a trip command is issued.
Lit when a failure is detected.
Lit when the testing switches are in test position.
Configurable LED to assign signals with or without latch when
relay operates.
Configurable LED to assign signals with or without latch when
relay operates.
Configurable LED to assign signals with or without latch when
relay operates.
Configurable LED to assign signals with or without latch when
relay operates.
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